从进程列表中获取图标而不是文件
从进程列表中获取图标而不是文件
提问于 2017-03-25 00:02:42
如何从处理列表中提取图标，而不是从当前的文件名中提取？到目前为止，这个工作通过打开表单对话框，他们点击一个文件，然后它添加到listView与图标。如何才能得到进程图标，并在listView中显示它们？
[StructLayout(LayoutKind.Sequential)]
public struct SHFILEINFO
{
public IntPtr hIcon;
public IntPtr iIcon;
public uint dwAttributes;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
public string szDisplayName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
public string szTypeName;
};
class Win32
{
public const uint SHGFI_ICON = 0x100;
public const uint SHGFI_LARGEICON = 0x0; // 'Large icon
public const uint SHGFI_SMALLICON = 0x1; // 'Small icon
[DllImport("shell32.dll")]
public static extern IntPtr SHGetFileInfo(string pszPath,
uint dwFileAttributes,
ref SHFILEINFO psfi,
uint cbSizeFileInfo,
uint uFlags);
}
private int nIndex = 0;
private void materialFlatButton13_Click_1(object sender, EventArgs e)
{
IntPtr hImgSmall; //the handle to the system image list
IntPtr hImgLarge; //the handle to the system image list
string fName; // 'the file name to get icon from
SHFILEINFO shinfo = new SHFILEINFO();
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.InitialDirectory = "c:\\temp\\";
openFileDialog1.Filter = "All files (*.*)|*.*";
openFileDialog1.FilterIndex = 2;
openFileDialog1.RestoreDirectory = true;
listView1.SmallImageList = imageList1;
listView1.LargeImageList = imageList1;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
fName = openFileDialog1.FileName;
//Use this to get the small Icon
hImgSmall = Win32.SHGetFileInfo(fName, 0, ref shinfo,
(uint)Marshal.SizeOf(shinfo),
Win32.SHGFI_ICON |
Win32.SHGFI_SMALLICON);
System.Drawing.Icon myIcon =
System.Drawing.Icon.FromHandle(shinfo.hIcon);
imageList1.Images.Add(myIcon);
//Add file name and icon to listview
listView1.Items.Add(fName, nIndex++);
}回答 3
Stack Overflow用户
回答已采纳
发布于 2017-03-25 03:46:25
您可以在Win32_Process上使用WMI查询查找进程信息，并使用ExecutablePath查找进程的可执行路径。然后可以使用Icon.ExtractAssociatedIcon提取进程的相关图标：
示例
在表单上放置一个ImageList，并将其ColorDepth设置为Depth32Bit，将ImageSize设置为32,32。在表单上放置一个ListView，并将其LargImageList设置为在第一步中创建的imageList1。
添加对System.Management.dll的引用并添加using System.Management;，并使用下面的代码填充listView1中的图标：
var query = "SELECT ProcessId, Name, ExecutablePath FROM Win32_Process";
using (var searcher = new ManagementObjectSearcher(query))
using (var results = searcher.Get())
{
var processes = results.Cast<ManagementObject>().Select(x => new
{
ProcessId = (UInt32)x["ProcessId"],
Name = (string)x["Name"],
ExecutablePath = (string)x["ExecutablePath"]
});
foreach (var p in processes)
{
if (System.IO.File.Exists(p.ExecutablePath))
{
var icon = Icon.ExtractAssociatedIcon(p.ExecutablePath);
var key = p.ProcessId.ToString();
this.imageList1.Images.Add(key, icon.ToBitmap());
this.listView1.Items.Add(p.Name, key);
}
}
}那么你就会得到这样的结果：
Stack Overflow用户
发布于 2018-01-18 08:30:02
32位和64位进程的解决方案
System.Diagnostics**)** ()(只有)
这将获得主模块( exe文件)的图标。如果访问和目标进程的架构不同，它也将工作：
var icon = Process.GetProcessById(1234).GetIcon()使用扩展方法：
public static class ProcessExtensions {
[DllImport("Kernel32.dll")]
private static extern uint QueryFullProcessImageName([In] IntPtr hProcess, [In] uint dwFlags, [Out] StringBuilder lpExeName, [In, Out] ref uint lpdwSize);
public static string GetMainModuleFileName(this Process process, int buffer = 1024) {
var fileNameBuilder = new StringBuilder(buffer);
uint bufferLength = (uint)fileNameBuilder.Capacity + 1;
return QueryFullProcessImageName(process.Handle, 0, fileNameBuilder, ref bufferLength) != 0 ?
fileNameBuilder.ToString() :
null;
}
public static Icon GetIcon(this Process process) {
try {
string mainModuleFileName = process.GetMainModuleFileName();
return Icon.ExtractAssociatedIcon(mainModuleFileName);
}
catch {
// Probably no access
return null;
}
}
}Stack Overflow用户
发布于 2017-03-25 00:07:11
见此处：C#: How to get the full path of running process?
foreach(var process in Process.GetProcesses()){
string fullPath = process.MainModule.FileName;
// do your stuff here
}您可以将其替换到现有代码中。或者，根据你现在正在做的事情量身定制。
编辑:添加了获取进程的代码
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/43011012
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